| Rank | Welsh as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 9.3% | Lackawanna Trail School District / 8,679 |
| 2. | 9.0% | Riverside School District / 11,961 |
| 3. | 8.8% | Mountain View School District / 8,551 |
| 4. | 8.3% | Lakeland School District / 12,348 |
| 5. | 8.0% | Greater Nanticoke Area School District / 18,814 |
| 6. | 8.0% | Hanover Area School District / 15,466 |
| 7. | 8.0% | Abington Heights School District / 23,617 |
| 8. | 7.8% | Lake-Lehman School District / 16,870 |
| 9. | 7.7% | Old Forge School District / 8,323 |
| 10. | 7.5% | Wyoming Valley West School District / 42,244 |
| 11. | 6.9% | Dallas School District / 20,743 |
| 12. | 6.7% | Tunkhannock Area School District / 19,286 |
| 13. | 6.7% | Mid Valley School District / 15,321 |
| 14. | 6.3% | Scranton School District / 76,021 |
| 15. | 6.2% | North Pocono School District / 20,295 |
| 16. | 6.0% | Wilkes-Barre Area School District / 59,763 |
| 17. | 5.9% | Wyoming Area School District / 19,333 |
| 18. | 5.2% | Crestwood School District / 19,997 |
| 18. | 5.2% | Northeast Bradford School District / 5,637 |
| 20. | 5.2% | Pittston Area School District / 27,774 |
| 21. | 5.2% | Elk Lake School District / 8,001 |
| 22. | 5.2% | North Schuylkill School District / 16,933 |
| 23. | 5.2% | Valley View School District / 18,251 |
| 23. | 5.2% | Northwest Area School District / 9,304 |
| 25. | 5.1% | Northern Lehigh School District / 13,068 |
| 26. | 5.0% | Williams Valley School District / 7,183 |
| 27. | 5.0% | Minersville Area School District / 8,913 |
| 28. | 4.8% | Tamaqua Area School District / 16,528 |
| 29. | 4.8% | Blacklick Valley School District / 5,422 |
| 30. | 4.8% | Forest City Regional School District / 5,773 |
| 31. | 4.6% | Reynolds School District / 9,585 |
| 32. | 4.5% | Laurel School District / 8,065 |
| 33. | 4.4% | Tussey Mountain School District / 7,011 |
| 34. | 4.4% | West Middlesex Area School District / 7,456 |
| 35. | 4.3% | Troy Area School District / 10,642 |
| 36. | 4.3% | Saint Clair Area School District / 6,830 |
| 37. | 4.1% | Central Cambria School District / 13,781 |
| 37. | 4.1% | Galeton Area School District / 3,021 |
| 39. | 4.1% | Wyalusing Area School District / 9,114 |
| 40. | 4.1% | Northwestern Lehigh School District / 14,843 |
| 41. | 4.1% | Wellsboro Area School District / 11,724 |
| 42. | 4.0% | Bloomsburg Area School District / 20,546 |
| 43. | 4.0% | Montrose Area School District / 11,987 |
| 43. | 4.0% | Blue Ridge School District / 7,959 |
| 45. | 3.9% | Towanda Area School District / 10,932 |
| 46. | 3.8% | Salisbury Township School District / 13,558 |
| 46. | 3.8% | Pottsville Area School District / 20,064 |
| 48. | 3.8% | Harmony Area School District / 2,255 |
| 49. | 3.7% | Danville Area School District / 18,658 |
| 50. | 3.7% | Weatherly Area School District / 5,037 |
| 51. | 3.6% | Schuylkill Haven Area School District / 8,290 |
| 52. | 3.6% | Pen Argyl Area School District / 12,477 |
| 53. | 3.5% | Blue Mountain School District / 20,386 |
| 53. | 3.5% | Austin Area School District / 1,121 |
| 55. | 3.5% | Panther Valley School District / 12,756 |
| 56. | 3.4% | Mahanoy Area School District / 11,668 |
| 57. | 3.3% | Bangor Area School District / 22,925 |
| 57. | 3.3% | Western Wayne School District / 18,852 |
| 59. | 3.3% | Oswayo Valley School District / 3,109 |
| 60. | 3.3% | Southern Tioga School District / 15,589 |
| 61. | 3.3% | Central Columbia School District / 15,066 |
| 62. | 3.2% | Benton Area School District / 5,101 |
| 62. | 3.2% | Saucon Valley School District / 16,677 |
| 64. | 3.2% | Wyomissing Area School District / 12,604 |
| 64. | 3.2% | Riverside Beaver County School District / 10,584 |
| 66. | 3.1% | Catasauqua Area School District / 10,880 |
| 67. | 3.1% | Parkland School District / 55,400 |
| 68. | 3.1% | Owen J. Roberts School District / 32,682 |
| 69. | 3.0% | Wilmington Area School District / 11,777 |
| 70. | 3.0% | Millville Area School District / 5,309 |
| 71. | 3.0% | Conemaugh Township Area School District / 8,280 |
| 72. | 3.0% | Loyalsock Township School District / 11,048 |
| 73. | 3.0% | Phoenixville Area School District / 32,038 |
| 74. | 2.9% | Dunmore School District / 14,081 |
| 75. | 2.9% | Moshannon Valley School District / 8,871 |
| 76. | 2.9% | Shanksville-Stonycreek School District / 2,856 |
| 77. | 2.8% | Penns Manor Area School District / 6,055 |
| 78. | 2.7% | Mechanicsburg Area School District / 28,513 |
| 79. | 2.7% | West Branch Area School District / 7,872 |
| 80. | 2.6% | Lower Dauphin School District / 24,749 |
| 81. | 2.6% | Purchase Line School District / 7,201 |
| 82. | 2.6% | Jamestown Area School District / 4,416 |
| 83. | 2.6% | Elizabeth Forward School District / 18,179 |
| 83. | 2.6% | Unionville-Chadds Ford School District / 23,756 |
| 83. | 2.6% | Neshannock Township School District / 9,554 |
| 86. | 2.6% | Brentwood Borough School District / 9,648 |
| 87. | 2.5% | New Castle Area School District / 24,362 |
| 88. | 2.5% | Derry Township School District / 24,551 |
| 89. | 2.5% | Quakertown Community School District / 36,367 |
| 89. | 2.5% | Cumberland Valley School District / 54,772 |
| 91. | 2.5% | Shamokin Area School District / 21,103 |
| 92. | 2.5% | Newport School District / 7,658 |
| 92. | 2.5% | Athens Area School District / 14,506 |
| 92. | 2.5% | Sharpsville Area School District / 7,666 |
| 95. | 2.5% | Southern Columbia Area School District / 10,322 |
| 96. | 2.4% | Bellwood-Antis School District / 8,477 |
| 97. | 2.4% | Twin Valley School District / 23,773 |
| 97. | 2.4% | Conemaugh Valley School District / 6,646 |
| 99. | 2.4% | Carlynton School District / 14,421 |
| 100. | 2.4% | Camp Hill School District / 7,858 |
| 100. | 2.4% | Carbondale Area School District / 11,029 |
| 102. | 2.4% | Mount Carmel Area School District / 12,573 |
| 103. | 2.4% | Perkiomen Valley School District / 37,505 |
| 104. | 2.3% | Westmont Hilltop School District / 12,944 |
| 105. | 2.3% | Steel Valley School District / 16,410 |
| 106. | 2.3% | Nazareth Area School District / 27,754 |
| 107. | 2.3% | Frazier School District / 8,462 |
| 108. | 2.3% | Forest Hills School District / 12,558 |
| 109. | 2.3% | Berwick Area School District / 22,542 |
| 109. | 2.3% | Avonworth School District / 10,155 |
| 111. | 2.2% | United School District / 8,414 |
| 111. | 2.2% | Daniel Boone Area School District / 21,143 |
| 111. | 2.2% | Mercer Area School District / 10,700 |
| 114. | 2.2% | Governor Mifflin School District / 30,920 |
| 115. | 2.2% | West Shore School District / 62,343 |
| 115. | 2.2% | Sayre Area School District / 8,108 |
| 117. | 2.2% | Hermitage School District / 16,252 |
| 118. | 2.2% | East Penn School District / 54,389 |
| 119. | 2.2% | South Williamsport Area School District / 9,246 |
| 120. | 2.1% | Tredyffrin-Easttown School District / 39,960 |
| 120. | 2.1% | Susquehanna Township School District / 24,062 |
| 122. | 2.1% | Blackhawk School District / 17,830 |
| 123. | 2.1% | Shenango Area School District / 8,146 |
| 123. | 2.1% | Titusville Area School District / 14,450 |
| 125. | 2.1% | California Area School District / 11,305 |
| 125. | 2.1% | Western Beaver County School District / 5,466 |
| 127. | 2.1% | Hollidaysburg Area School District / 27,162 |
| 127. | 2.1% | Wallingford-Swarthmore School District / 21,588 |
| 129. | 2.1% | Palmerton Area School District / 14,139 |
| 130. | 2.1% | Montgomery Area School District / 7,521 |
| 130. | 2.1% | Jim Thorpe Area School District / 15,666 |
| 132. | 2.0% | Keystone School District / 7,652 |
| 132. | 2.0% | Northern York County School District / 21,103 |
| 132. | 2.0% | Oil City Area School District / 14,933 |
| 135. | 2.0% | Portage Area School District / 6,415 |
| 135. | 2.0% | Susquenita School District / 14,759 |
| 135. | 2.0% | Lampeter-Strasburg School District / 22,722 |
| 135. | 2.0% | Peters Township School District / 21,141 |
| 139. | 2.0% | Millersburg Area School District / 6,711 |
| 139. | 2.0% | Valley Grove School District / 6,896 |
| 139. | 2.0% | Northern Potter School District / 4,485 |
| 142. | 2.0% | South Butler County School District / 18,533 |
| 142. | 2.0% | South Eastern School District / 19,770 |
| 144. | 2.0% | Canton Area School District / 6,623 |
| 145. | 2.0% | North Star School District / 9,063 |
| 145. | 2.0% | Montoursville Area School District / 13,189 |
| 145. | 2.0% | Belle Vernon Area School District / 19,038 |
| 145. | 2.0% | Richland School District / 14,772 |
| 149. | 1.9% | Sharon City School District / 14,060 |
| 149. | 1.9% | Elizabethtown Area School District / 30,150 |
| 151. | 1.9% | Kennett Consolidated School District / 27,088 |
| 152. | 1.9% | Palisades School District / 15,036 |
| 152. | 1.9% | Conrad Weiser Area School District / 19,142 |
| 152. | 1.9% | Indiana Area School District / 32,917 |
| 155. | 1.9% | Ephrata Area School District / 33,179 |
| 156. | 1.9% | Huntingdon Area School District / 20,246 |
| 156. | 1.9% | West Greene School District / 5,009 |
| 156. | 1.9% | Wilson School District / 38,641 |
| 159. | 1.9% | Penn-Trafford School District / 25,979 |
| 159. | 1.9% | Beaver Area School District / 14,741 |
| 161. | 1.9% | Claysburg-Kimmel School District / 5,823 |
| 161. | 1.9% | Northern Tioga School District / 14,696 |
| 163. | 1.9% | Muhlenberg School District / 23,502 |
| 163. | 1.9% | Juniata Valley School District / 5,407 |
| 163. | 1.9% | Selinsgrove Area School District / 22,455 |
| 163. | 1.9% | Clearfield Area School District / 19,331 |
| 163. | 1.9% | Conneaut School District / 18,063 |
| 168. | 1.8% | Ridley School District / 40,232 |
| 168. | 1.8% | Hatboro-Horsham School District / 33,469 |
| 170. | 1.8% | Corry Area School District / 14,794 |
| 170. | 1.8% | Williamsburg Community School District / 3,786 |
| 172. | 1.8% | Bethlehem Area School District / 116,879 |
| 172. | 1.8% | York Suburban School District / 21,827 |
| 174. | 1.8% | Baldwin-Whitehall School District / 35,609 |
| 174. | 1.8% | Bald Eagle Area School District / 13,667 |
| 174. | 1.8% | Whitehall-Coplay School District / 30,019 |
| 174. | 1.8% | Octorara Area School District / 18,063 |
| 178. | 1.8% | Pennridge School District / 48,506 |
| 178. | 1.8% | Northampton Area School District / 41,687 |
| 178. | 1.8% | West Allegheny School District / 20,314 |
| 178. | 1.8% | Keystone Oaks School District / 20,693 |
| 182. | 1.8% | Quaker Valley School District / 13,851 |
| 182. | 1.8% | Wallenpaupack Area School District / 25,013 |
| 184. | 1.8% | Big Beaver Falls Area School District / 13,545 |
| 185. | 1.8% | Seneca Valley School District / 47,060 |
| 186. | 1.8% | Upper Dublin School District / 25,774 |
| 186. | 1.8% | Neshaminy School District / 70,857 |
| 188. | 1.8% | Warwick School District / 30,973 |
| 188. | 1.8% | Curwensville Area School District / 7,342 |
| 188. | 1.8% | Rose Tree Media School District / 35,345 |
| 188. | 1.8% | Kutztown Area School District / 18,763 |
| 192. | 1.7% | West Mifflin Area School District / 21,634 |
| 192. | 1.7% | Eastern York School District / 19,767 |
| 192. | 1.7% | Exeter Township School District / 27,243 |
| 192. | 1.7% | Fairview School District / 10,134 |
| 192. | 1.7% | Slippery Rock Area School District / 20,567 |
| 197. | 1.7% | Williamsport Area School District / 41,926 |
| 197. | 1.7% | Lehighton Area School District / 18,014 |
| 199. | 1.7% | Pleasant Valley School District / 33,848 |
| 199. | 1.7% | Downingtown Area School District / 68,550 |
| 199. | 1.7% | Upper Perkiomen School District / 22,247 |
| 199. | 1.7% | Fannett-Metal School District / 4,494 |
| 199. | 1.7% | Philipsburg-Osceola Area School District / 15,369 |
| 199. | 1.7% | Stroudsburg Area School District / 34,494 |
| 205. | 1.7% | Ferndale Area School District / 5,218 |
| 206. | 1.7% | Oley Valley School District / 13,500 |
| 206. | 1.7% | Penn Manor School District / 41,280 |
| 208. | 1.7% | Turkeyfoot Valley Area School District / 3,079 |
| 208. | 1.7% | Fleetwood Area School District / 16,564 |
| 208. | 1.7% | Union City Area School District / 6,758 |
| 211. | 1.7% | Mohawk Area School District / 10,660 |
| 212. | 1.7% | General McLane School District / 17,252 |
| 212. | 1.7% | Central Dauphin School District / 90,412 |
| 214. | 1.6% | Big Spring School District / 20,880 |
| 214. | 1.6% | East Pennsboro Area School District / 20,088 |
| 216. | 1.6% | Ringgold School District / 26,279 |
| 217. | 1.6% | Everett Area School District / 9,622 |
| 218. | 1.6% | Cocalico School District / 23,215 |
| 218. | 1.6% | Charleroi School District / 11,948 |
| 218. | 1.6% | North Penn School District / 98,291 |
| 218. | 1.6% | State College Area School District / 91,936 |
| 218. | 1.6% | Bellefonte Area School District / 25,632 |
| 223. | 1.6% | Radnor Township School District / 31,459 |
| 223. | 1.6% | Brookville Area School District / 11,731 |
| 223. | 1.6% | Freeport Area School District / 11,795 |
| 223. | 1.6% | Delaware Valley School District / 29,300 |
| 223. | 1.6% | Upper Saint Clair School District / 19,233 |
| 223. | 1.6% | Halifax Area School District / 7,516 |
| 229. | 1.6% | Penn-Delco School District / 26,921 |
| 229. | 1.6% | Avon Grove School District / 30,296 |
| 229. | 1.6% | Laurel Highlands School District / 23,498 |
| 232. | 1.6% | Shenandoah Valley School District / 7,938 |
| 232. | 1.6% | Great Valley School District / 29,763 |
| 232. | 1.6% | Cambria Heights School District / 9,697 |
| 232. | 1.6% | Pine Grove Area School District / 11,704 |
| 236. | 1.6% | Cranberry Area School District / 9,219 |
| 236. | 1.6% | Yough School District / 16,366 |
| 238. | 1.6% | Manheim Township School District / 38,133 |
| 238. | 1.6% | Jersey Shore Area School District / 18,492 |
| 240. | 1.6% | Northeastern York School District / 23,330 |
| 240. | 1.6% | Northern Cambria School District / 7,721 |
| 242. | 1.5% | Plum Borough School District / 27,147 |
| 242. | 1.5% | Wayne Highlands School District / 21,380 |
| 242. | 1.5% | Center Valley School District / 18,170 |
| 242. | 1.5% | Greater Latrobe School District / 31,155 |
| 246. | 1.5% | Wilson Area School District / 15,435 |
| 246. | 1.5% | Mt. Lebanon School District / 33,013 |
| 246. | 1.5% | Carlisle Area School District / 36,876 |
| 249. | 1.5% | Gettysburg Area School District / 27,784 |
| 249. | 1.5% | Southern York County School District / 20,770 |
| 249. | 1.5% | Homer-Center School District / 6,511 |
| 252. | 1.5% | Bethel Park School District / 32,944 |
| 252. | 1.5% | Chichester School District / 24,562 |
| 252. | 1.5% | Somerset Area School District / 21,051 |
| 252. | 1.5% | Gateway School District / 31,619 |
| 256. | 1.5% | Shikellamy School District / 22,569 |
| 256. | 1.5% | Grove City Area School District / 17,472 |
| 256. | 1.5% | West Jefferson Hills School District / 19,725 |
| 259. | 1.5% | Crawford Central School District / 30,678 |
| 259. | 1.5% | Easton Area School District / 63,500 |
| 259. | 1.5% | Antietam School District / 7,607 |
| 259. | 1.5% | Harbor Creek School District / 17,140 |
| 263. | 1.5% | Pine-Richland School District / 22,483 |
| 263. | 1.5% | Bedford Area School District / 16,548 |
| 265. | 1.5% | Tri-Valley School District / 6,657 |
| 265. | 1.5% | DuBois Area School District / 30,863 |
| 265. | 1.5% | North Allegheny School District / 50,169 |
| 268. | 1.4% | Lewisburg Area School District / 19,035 |
| 268. | 1.4% | Central Bucks School District / 114,149 |
| 270. | 1.4% | Annville-Cleona School District / 12,250 |
| 270. | 1.4% | Hopewell Area School District / 18,078 |
| 270. | 1.4% | Rockwood Area School District / 5,702 |
| 270. | 1.4% | Garnet Valley School District / 28,252 |
| 274. | 1.4% | Cameron County School District / 5,058 |
| 274. | 1.4% | Mars Area School District / 18,873 |
| 276. | 1.4% | Bristol Township School District / 54,691 |
| 276. | 1.4% | South Side Area School District / 6,912 |
| 276. | 1.4% | Colonial School District / 41,679 |
| 279. | 1.4% | Interboro School District / 23,608 |
| 279. | 1.4% | Leechburg Area School District / 5,750 |
| 279. | 1.4% | Columbia Borough School District / 10,413 |
| 279. | 1.4% | Marion Center Area School District / 10,213 |
| 279. | 1.4% | Forest Area School District / 8,075 |
| 279. | 1.4% | Boyertown Area School District / 46,397 |
| 279. | 1.4% | Central Greene School District / 16,026 |
| 279. | 1.4% | Ligonier Valley School District / 15,605 |
| 287. | 1.4% | Palmyra Area School District / 22,375 |
| 287. | 1.4% | Wissahickon School District / 36,741 |
| 287. | 1.4% | Bentworth School District / 8,402 |
| 287. | 1.4% | Commodore Perry School District / 4,124 |
| 287. | 1.4% | Tyrone Area School District / 12,777 |
| 287. | 1.4% | Schuylkill Valley School District / 14,928 |
| 287. | 1.4% | West Chester Area School District / 108,949 |
| 287. | 1.4% | Hempfield School District / 46,997 |
| 295. | 1.4% | Butler Area School District / 54,810 |
| 296. | 1.4% | Hempfield Area School District / 50,744 |
| 296. | 1.4% | Hazleton Area School District / 72,485 |
| 296. | 1.4% | Warrior Run School District / 17,278 |
| 296. | 1.4% | Northgate School District / 13,081 |
| 300. | 1.3% | Smethport Area School District / 6,177 |
| 300. | 1.3% | East Lycoming School District / 10,286 |
| 300. | 1.3% | Meyersdale Area School District / 7,377 |
| 303. | 1.3% | Farrell Area School District / 5,748 |
| 303. | 1.3% | Freedom Area School District / 11,006 |
| 303. | 1.3% | Northern Bedford County School District / 6,991 |
| 303. | 1.3% | Pennsbury School District / 71,176 |
| 303. | 1.3% | Centennial School District / 49,044 |
| 308. | 1.3% | Mifflinburg Area School District / 16,395 |
| 308. | 1.3% | Warren County School District / 38,569 |
| 308. | 1.3% | Central York School District / 36,846 |
| 308. | 1.3% | Pocono Mountain School District / 64,340 |
| 312. | 1.3% | Eastern Lancaster County School District / 32,177 |
| 313. | 1.3% | Trinity Area School District / 26,075 |
| 313. | 1.3% | Spring-Ford Area School District / 47,104 |
| 313. | 1.3% | McKeesport Area School District / 31,390 |
| 313. | 1.3% | Pottsgrove School District / 21,197 |
| 313. | 1.3% | Lower Merion School District / 62,263 |
| 318. | 1.3% | Donegal School District / 20,611 |
| 318. | 1.3% | Penncrest School District / 24,706 |
| 320. | 1.3% | Blairsville-Saltsburg School District / 14,063 |
| 321. | 1.3% | Sullivan County School District / 6,453 |
| 321. | 1.3% | Moniteau School District / 9,595 |
| 321. | 1.3% | Lakeview School District / 8,504 |
| 321. | 1.3% | Souderton Area School District / 45,182 |
| 321. | 1.3% | East Allegheny School District / 14,969 |
| 321. | 1.3% | North Hills School District / 37,878 |
| 321. | 1.3% | Southern Lehigh School District / 21,022 |
| 328. | 1.3% | Jefferson-Morgan School District / 6,056 |
| 328. | 1.3% | Springfield School District / 26,843 |
| 328. | 1.3% | Chestnut Ridge School District / 10,959 |
| 328. | 1.3% | Franklin Regional School District / 23,150 |
| 332. | 1.2% | West York Area School District / 23,499 |
| 332. | 1.2% | Franklin Area School District / 16,646 |
| 334. | 1.2% | Dover Area School District / 25,736 |
| 334. | 1.2% | Upper Dauphin Area School District / 9,469 |
| 334. | 1.2% | Brockway Area School District / 7,560 |
| 334. | 1.2% | Ellwood City Area School District / 14,467 |
| 338. | 1.2% | Upper Merion Area School District / 34,183 |
| 338. | 1.2% | Red Lion Area School District / 38,396 |
| 338. | 1.2% | Greater Johnstown School District / 27,701 |
| 338. | 1.2% | Altoona Area School District / 59,847 |
| 338. | 1.2% | Apollo-Ridge School District / 9,491 |
| 343. | 1.2% | Susquehanna Community School District / 5,509 |
| 344. | 1.2% | Keystone Central School District / 36,907 |
| 344. | 1.2% | Avella Area School District / 4,147 |
| 344. | 1.2% | Mifflin County School District / 43,605 |
| 347. | 1.2% | Upper Moreland Township School District / 24,106 |
| 347. | 1.2% | East Stroudsburg Area School District / 47,666 |
| 347. | 1.2% | Millcreek Township School District / 53,525 |
| 347. | 1.2% | Woodland Hills School District / 47,070 |
| 347. | 1.2% | Wattsburg Area School District / 10,351 |
| 352. | 1.2% | Otto-Eldred School District / 4,216 |
| 353. | 1.2% | Coatesville Area School District / 62,840 |
| 353. | 1.2% | Marple Newtown School District / 35,653 |
| 353. | 1.2% | Solanco School District / 31,913 |
| 356. | 1.2% | Punxsutawney Area School District / 21,096 |
| 356. | 1.2% | New Hope-Solebury School District / 11,168 |
| 358. | 1.1% | Allentown City School District / 117,942 |
| 358. | 1.1% | Greenwood School District / 5,409 |
| 358. | 1.1% | New Brighton Area School District / 10,916 |
| 361. | 1.1% | Manheim Central School District / 24,161 |
| 361. | 1.1% | Canon-McMillan School District / 33,647 |
| 361. | 1.1% | Moon Area School District / 26,850 |
| 364. | 1.1% | Tulpehocken Area School District / 12,451 |
| 365. | 1.1% | Uniontown Area School District / 23,479 |
| 366. | 1.1% | Conestoga Valley School District / 32,944 |
| 366. | 1.1% | Derry Area School District / 17,786 |
| 366. | 1.1% | Union Area School District / 5,609 |
| 366. | 1.1% | Haverford Township School District / 48,560 |
| 366. | 1.1% | Rochester Area School District / 7,156 |
| 366. | 1.1% | South Allegheny School District / 11,826 |
| 372. | 1.1% | South Western School District / 26,706 |
| 372. | 1.1% | Redbank Valley School District / 8,144 |
| 372. | 1.1% | Bryn Athyn School District / 1,430 |
| 375. | 1.1% | Norwin School District / 35,520 |
| 375. | 1.1% | Chartiers-Houston School District / 9,161 |
| 375. | 1.1% | Shade-Central City School District / 3,883 |
| 378. | 1.1% | South Park School District / 13,454 |
| 378. | 1.1% | Council Rock School District / 72,510 |
| 380. | 1.1% | Chambersburg Area School District / 66,532 |
| 380. | 1.1% | Fort Cherry School District / 8,713 |
| 380. | 1.1% | Northern Lebanon School District / 17,077 |
| 383. | 1.0% | Spring Grove Area School District / 27,445 |
| 383. | 1.0% | Mount Union Area School District / 10,074 |
| 383. | 1.0% | Girard School District / 11,192 |
| 386. | 1.0% | Central Fulton School District / 6,348 |
| 386. | 1.0% | Windber Area School District / 8,557 |
| 388. | 1.0% | Shaler Area School District / 39,302 |
| 388. | 1.0% | Cornwall-Lebanon School District / 34,591 |
| 390. | 1.0% | North East School District / 10,656 |
| 391. | 1.0% | Glendale School District / 5,467 |
| 391. | 1.0% | Clairton City School District / 6,854 |
| 391. | 1.0% | Abington School District / 57,930 |
| 394. | 1.0% | Eastern Lebanon County School District / 20,905 |
| 395. | 1.0% | Highlands School District / 20,743 |
| 395. | 1.0% | Oxford Area School District / 25,743 |
| 395. | 1.0% | Bermudian Springs School District / 12,973 |
| 398. | 1.0% | Penn Hills School District / 42,491 |
| 398. | 1.0% | Cheltenham Township School District / 36,806 |
| 398. | 1.0% | Burgettstown Area School District / 9,990 |
| 401. | 1.0% | Juniata County School District / 24,080 |
| 401. | 1.0% | Hamburg Area School District / 17,530 |
| 401. | 1.0% | Greensburg Salem School District / 26,143 |
| 401. | 1.0% | Cornell School District / 6,743 |
| 401. | 1.0% | Ambridge Area School District / 23,713 |
| 401. | 1.0% | Bradford Area School District / 21,204 |
| 407. | 1.0% | Montour School District / 25,506 |
| 407. | 1.0% | Brownsville Area School District / 14,975 |
| 407. | 1.0% | Springfield Township School District / 19,436 |
| 410. | 0.9% | Pittsburgh School District / 309,849 |
| 410. | 0.9% | Coudersport Area School District / 5,632 |
| 410. | 0.9% | Clarion-Limestone Area School District / 8,215 |
| 413. | 0.9% | Armstrong School District / 43,303 |
| 414. | 0.9% | Middletown Area School District / 18,360 |
| 414. | 0.9% | Dallastown Area School District / 40,862 |
| 414. | 0.9% | Jeannette City School District / 9,602 |
| 414. | 0.9% | Albert Gallatin Area School District / 23,738 |
| 418. | 0.9% | Chartiers Valley School District / 30,474 |
| 419. | 0.9% | Deer Lakes School District / 14,255 |
| 419. | 0.9% | Brandywine Heights Area School District / 12,762 |
| 419. | 0.9% | Morrisville Borough School District / 8,793 |
| 422. | 0.9% | Karns City Area School District / 10,574 |
| 423. | 0.9% | Muncy School District / 7,143 |
| 424. | 0.9% | Port Allegany School District / 5,876 |
| 424. | 0.9% | Salisbury-Elk Lick School District / 3,006 |
| 426. | 0.9% | South Fayette Township School District / 14,429 |
| 427. | 0.9% | New Kensington-Arnold School District / 18,307 |
| 428. | 0.8% | Allegheny Valley School District / 9,556 |
| 428. | 0.8% | Lebanon School District / 26,380 |
| 428. | 0.8% | McGuffey School District / 12,978 |
| 428. | 0.8% | Penn Cambria School District / 17,255 |
| 432. | 0.8% | Milton Area School District / 16,813 |
| 432. | 0.8% | York City School District / 43,677 |
| 434. | 0.8% | Upper Darby School District / 90,413 |
| 434. | 0.8% | Hampton Township School District / 18,302 |
| 436. | 0.8% | Shippensburg Area School District / 28,102 |
| 437. | 0.8% | Penns Valley Area School District / 12,480 |
| 437. | 0.8% | Fairfield Area School District / 7,914 |
| 439. | 0.8% | Mount Pleasant Area School District / 18,011 |
| 440. | 0.8% | Methacton School District / 35,067 |
| 440. | 0.8% | South Middleton School District / 14,644 |
| 440. | 0.8% | Iroquois School District / 7,298 |
| 443. | 0.7% | Southmoreland School District / 15,234 |
| 443. | 0.7% | Forbes Road School District / 3,013 |
| 443. | 0.7% | Kiski Area School District / 28,699 |
| 446. | 0.7% | Erie City School District / 101,461 |
| 446. | 0.7% | Midd-West School District / 17,165 |
| 446. | 0.7% | Greenville Area School District / 10,670 |
| 449. | 0.7% | Conewago Valley School District / 26,812 |
| 449. | 0.7% | Lancaster School District / 75,064 |
| 451. | 0.7% | North Clarion County School District / 4,616 |
| 452. | 0.7% | Hanover Public School District / 15,315 |
| 452. | 0.7% | Lower Moreland Township School District / 12,935 |
| 454. | 0.7% | Allegheny-Clarion Valley School District / 5,909 |
| 454. | 0.7% | Berlin Brothersvalley School District / 5,581 |
| 454. | 0.7% | Pottstown School District / 22,388 |
| 454. | 0.7% | Southern Fulton School District / 5,468 |
| 458. | 0.6% | Connellsville Area School District / 34,478 |
| 458. | 0.6% | Riverview School District / 8,853 |
| 458. | 0.6% | Spring Cove School District / 13,938 |
| 461. | 0.6% | Line Mountain School District / 8,927 |
| 461. | 0.6% | Southeastern Greene School District / 4,583 |
| 461. | 0.6% | Bethlehem-Center School District / 8,537 |
| 464. | 0.6% | Bensalem Township School District / 60,431 |
| 464. | 0.6% | Kane Area School District / 7,235 |
| 466. | 0.6% | Sto-Rox School District / 12,470 |
| 466. | 0.6% | Washington School District / 15,883 |
| 466. | 0.6% | Monessen City School District / 7,732 |
| 469. | 0.6% | Northwestern School District / 12,034 |
| 470. | 0.6% | Norristown Area School District / 63,582 |
| 470. | 0.6% | Southeast Delco School District / 30,347 |
| 470. | 0.6% | Tuscarora School District / 18,470 |
| 470. | 0.6% | Union School District / 4,276 |
| 474. | 0.5% | West Perry School District / 18,748 |
| 475. | 0.5% | Greencastle-Antrim School District / 18,877 |
| 475. | 0.5% | Pequea Valley School District / 21,468 |
| 477. | 0.5% | St. Marys Area School District / 19,098 |
| 478. | 0.5% | Fox Chapel Area School District / 28,674 |
| 478. | 0.5% | Clarion Area School District / 8,825 |
| 478. | 0.5% | Reading School District / 87,926 |
| 481. | 0.5% | Fort LeBoeuf School District / 14,267 |
| 481. | 0.5% | Midland Borough School District / 2,639 |
| 483. | 0.4% | William Penn School District / 42,111 |
| 483. | 0.4% | Wilkinsburg Borough School District / 16,026 |
| 483. | 0.4% | Waynesboro Area School District / 32,018 |
| 486. | 0.4% | Burrell School District / 14,045 |
| 486. | 0.4% | Littlestown Area School District / 14,941 |
| 488. | 0.4% | Upper Adams School District / 10,928 |
| 489. | 0.4% | Philadelphia City School District / 1,525,811 |
| 489. | 0.4% | Bristol Borough School District / 9,739 |
| 489. | 0.4% | Ridgway Area School District / 6,763 |
| 492. | 0.4% | Harrisburg City School District / 49,401 |
| 493. | 0.4% | Southern Huntingdon County School District / 7,933 |
| 494. | 0.3% | Aliquippa School District / 9,497 |
| 495. | 0.3% | Duquesne City School District / 5,639 |
| 496. | 0.2% | Chester-Upland School District / 41,390 |
| 497. | 0.1% | Johnsonburg Area School District / 4,802 |
| 498. | 0.1% | Steelton-Highspire School District / 8,569 |
| 499. | 0.0% | Carmichaels Area School District / 6,940 |
Please note that we only rank locations with 'Welsh as First Ancestry Population Percentage' data. The rank above might not be a complete list. Locations without 'Welsh as First Ancestry Population Percentage' data are not listed.
*ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.
